... Rohs 3.Have patent in China 4.FOB USD:4 electric hot bag1)color:Red,Orange,Yellow,Pink,Purple, Blue, ... Green & Clear 2)usage:To charge the electric warmer for about 5 minutes until the water is boiling ... many time ,venting it ,will use longer4)material:hot liquidmodel: x063size:20*23cm temp:75*85°C Major ... a set temperature, heat preservation 2-10 hours PVC hot pad in any custom shape. It is good ...